BIOLOGY PROCTORED EXAM PENN FOSTER
2024-2025 ACTUAL EXAM/PENN FOSTER
BIOLOGY PROCTORED EXAM LATEST 200
QUESTIONS AND CORRECT ANSWERS
Terms in this set (199)
-All are composed of cells
-All obtain energy and use it to develop
Characteristics of living -Can sense changes in the environment and adjust in
things response to change
-Exhibit modifications that represent adaptations to their
environment
Levels of Biological atom, molecule, organelle, cell, tissue, organ, organ
Organization system, organism
How are organisms on the basis of their evolutionary/genetic relatedness
classified?
Process used to validate observations while minimizing
What is the scientific observer bias
method? What is it's
importance in biological It's goal is for research to be conduced in a fair,
sciences? unbiased and repeatable manner. The best way to
discover how and why the world works
What is matter? Anything that has mass and takes up space
smallest unit of matter that retains all the chemical
What is an atom? properties of an element. They combine to form
molecules which then form into a solid, gas or liquid
, Nucleus in the center that contains protons (positively
What is the structure of an charged) and neutrons (no charge). The outermost
atom? region is called an electron shell that contain the
electrons (negatively charged)
A chemical bond that's formed when an atom transfers
What is an ionic bond?
and electron to another Atom
Results when 2 atoms share electrons in order to have a
What is a covalent bond?
completed outer shell
What is a double covalent Occurs when 2 atoms share 2 pairs of electroms
bond?
In order to be an organic Carbon and hydrogen
molecule it must contain
what?
What are the main groups Carbohydrates, proteins, lipids, nucleic acid
of organic molecules that
build cells and their parts?
Its attraction to polar molecules.
High-specific heat.
What are the properties of
High heat of vaporization.
water?
The lower density of ice.
High polarity.
Carbohydrates Broken down to glucose to provide energy.
Glucose= monosaccharide that serves as blood sugar
Sucrose= disaccharide which is table sugar
What are the different kinds Polysaccharides= include starch, which stores energy in
of carbs? plants
Glycogen= stores energy in animals
Cellulose= makes up the structure of plant cell walls
macromolecule that contains carbon, hydrogen, oxygen,
Protein
and nitrogen; needed by the body for growth and repair
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